Fast noise variance estimation
Computer Vision and Image Understanding
Combined Wavelet Domain and Temporal Video Denoising
AVSS '03 Proceedings of the IEEE Conference on Advanced Video and Signal Based Surveillance
Handbook of Image and Video Processing (Communications, Networking and Multimedia)
Handbook of Image and Video Processing (Communications, Networking and Multimedia)
AICCSA '06 Proceedings of the IEEE International Conference on Computer Systems and Applications
High-fidelity RGB video coding using adaptive inter-plane weighted prediction
IEEE Transactions on Circuits and Systems for Video Technology
Minimax MSE-ratio estimation with signal covariance uncertainties
IEEE Transactions on Signal Processing
Wavelet-based statistical signal processing using hidden Markovmodels
IEEE Transactions on Signal Processing
De-noising by soft-thresholding
IEEE Transactions on Information Theory
Design and real-time implementation of a 3-D rational filter for edge preserving smoothing
IEEE Transactions on Consumer Electronics
Improved image denoising with adaptive nonlocal means (ANL-means) algorithm
IEEE Transactions on Consumer Electronics
Bayesian tree-structured image modeling using wavelet-domain hidden Markov models
IEEE Transactions on Image Processing
Color plane interpolation using alternating projections
IEEE Transactions on Image Processing
Primary-consistent soft-decision color demosaicking for digital cameras (patent pending)
IEEE Transactions on Image Processing
Edge-preserving image denoising via optimal color space projection
IEEE Transactions on Image Processing
Motion- and aliasing-compensated prediction for hybrid video coding
IEEE Transactions on Circuits and Systems for Video Technology
Wavelet-Domain Video Denoising Based on Reliability Measures
IEEE Transactions on Circuits and Systems for Video Technology
Temporal Video Denoising Based on Multihypothesis Motion Compensation
IEEE Transactions on Circuits and Systems for Video Technology
Video Denoising Based on a Spatiotemporal Gaussian Scale Mixture Model
IEEE Transactions on Circuits and Systems for Video Technology
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This work deals with the additive white Gaussian noise reduction in grayscale and color video sequences. The first main contribution of this paper is the generalized multihypothesis motion compensated filter (GMHMCF) which combines the merits of the traditional time-recursive filter and non-recursive filter in the sense that the reference frame buffer of GMHMCF consists of the denoised previous frames as well as the noisy future frames, such that both the backward and the forward inter-frame correlation can be well exploited. To establish the temporal correspondence between neighboring frames, GMHMCF employs a noise-robust motion estimation (ME) with a pre-defined motion vector (MV) regularization term to construct multiple temporal predictions (hypotheses), which are combined with the current noisy observation through a linear optimal estimator to restore the noise-free signal. The denoising performance of different reference frame configurations is analytically discussed and experimentally tested. Another important contribution of this paper is to extend the GMHMCF to color noise reduction. We examine the primary factors that affect the denoising error of the linear estimator and derive an adaptive optimal luminance-chrominance space such that, when the RGB samples are converted to that new space, GMHMCF can be applied to the individual color components to achieve the minimum overall denoising error. The experiments conducted on representative test video sequences demonstrate that the proposed method provides promising results and is competitive with other state-of-the-art denoising techniques both in terms of objective metric and in perceptual quality.